.page-faq {
  --faq-line: rgba(16, 24, 32, .14);
  --faq-gap: clamp(20px, 3.4vw, 44px);
  background: var(--mist);
  color: var(--ink);
}

.page-faq [id] {
  scroll-margin-top: 92px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--mist);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: var(--faq-gap);
  padding-block: clamp(26px, 4vw, 56px);
  align-items: stretch;
}

.page-faq .faq-hero__text {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-faq .faq-hero .display {
  font-family: var(--font-display);
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.08;
  letter-spacing: .04em;
  margin: 0;
  color: var(--blue-900);
}

.page-faq .faq-hero .lede {
  max-width: 34em;
  color: var(--ink);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-faq .faq-hero__jump .btn {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
}

.page-faq .faq-hero__panel {
  background: var(--blue-900);
  color: var(--mist);
  padding: clamp(22px, 3vw, 34px);
  position: relative;
  border-top: 3px solid var(--cyan);
}

.page-faq .faq-hero__panel-title {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
  margin: 0 0 18px;
}

.page-faq .faq-hero__stats {
  margin: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-stat {
  border-left: 1px solid var(--line-invert);
  padding-left: 14px;
}

.page-faq .faq-hero__panel dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(233, 238, 243, .72);
  margin: 0;
}

.page-faq .faq-hero__panel dd {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--paper);
}

/* ---------- 目录与检索 ---------- */
.page-faq .faq-catalog__grid {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-catalog__side {
  align-self: start;
}

.page-faq .faq-catalog__side .title-md {
  margin: 6px 0 20px;
  color: var(--blue-900);
}

.page-faq .faq-chapters {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-chapters li {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-chapters a {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 4px 12px;
  padding: 14px 10px 14px 12px;
  border-left: 3px solid transparent;
  text-decoration: none;
  color: inherit;
  transition: transform .16s var(--ease), border-color .16s var(--ease), background .16s var(--ease);
}

.page-faq .faq-chapters a:hover,
.page-faq .faq-chapters a:focus-visible {
  border-left-color: var(--cyan);
  transform: translateX(4px);
  background: var(--paper);
}

.page-faq .faq-chapters .mono {
  color: var(--orange);
  font-size: 12px;
  letter-spacing: .06em;
  padding-top: 3px;
}

.page-faq .faq-chapters__name {
  font-weight: 700;
  font-size: 17px;
  color: var(--blue-900);
}

.page-faq .faq-chapters__note {
  grid-column: 2;
  font-size: 13px;
  line-height: 1.6;
  color: var(--graphite);
}

.page-faq .faq-search {
  display: grid;
  gap: 10px;
}

.page-faq .faq-search label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--graphite);
}

.page-faq .faq-search input {
  width: 100%;
  box-sizing: border-box;
  min-height: 48px;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--blue-500);
  border-radius: 0;
  transition: border-color .16s var(--ease), box-shadow .16s var(--ease);
}

.page-faq .faq-search input::placeholder {
  color: var(--graphite);
}

.page-faq .faq-search input:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-color: var(--blue-700);
}

.page-faq .faq-search__meta {
  margin: 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--graphite);
}

.page-faq .faq-hits {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-hits li {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hits a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 14px 12px;
  border-left: 3px solid transparent;
  text-decoration: none;
  color: inherit;
  transition: transform .16s var(--ease), background .16s var(--ease), border-color .16s var(--ease);
}

.page-faq .faq-hits a:hover,
.page-faq .faq-hits a:focus-visible {
  transform: translateX(4px);
  border-left-color: var(--orange);
  background: var(--paper);
}

.page-faq .faq-hits .mono {
  font-size: 12px;
  color: var(--orange);
  letter-spacing: .06em;
}

.page-faq .faq-hits__label {
  flex: 1 1 15em;
  font-size: 16px;
  line-height: 1.55;
  color: var(--blue-900);
}

.page-faq .faq-hits__empty {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--orange);
  background: var(--paper);
  font-size: 15px;
  color: var(--ink);
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-chapter__head {
  max-width: 42em;
  margin-bottom: clamp(22px, 3vw, 36px);
}

.page-faq .faq-chapter__head .title-lg {
  margin: 6px 0 12px;
  color: var(--blue-900);
}

.page-faq .faq-chapter__head > p {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--graphite);
}

.page-faq .faq-note {
  margin: 22px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--blue-500);
  font-size: 15px;
  line-height: 1.75;
  color: var(--graphite);
}

/* ---------- 分步卡片 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: faqstep;
}

.page-faq .faq-steps > li {
  position: relative;
  padding: 0 0 28px 58px;
  counter-increment: faqstep;
}

.page-faq .faq-steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  width: 36px;
  height: 26px;
  display: grid;
  place-items: center;
  background: var(--orange);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-faq .faq-steps > li::after {
  content: "";
  position: absolute;
  left: 17px;
  top: 36px;
  bottom: 8px;
  width: 1px;
  background: var(--blue-500);
  opacity: .45;
}

.page-faq .faq-steps > li:last-child {
  padding-bottom: 0;
}

.page-faq .faq-steps > li:last-child::after {
  display: none;
}

.page-faq .faq-step__title {
  margin: 0 0 6px;
  font-size: 18px;
  line-height: 1.4;
  color: var(--blue-900);
}

.page-faq .faq-steps p {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .faq-step__tick {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  padding: 8px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--graphite);
  cursor: pointer;
}

.page-faq .faq-step__tick input {
  width: 18px;
  height: 18px;
  accent-color: var(--orange);
}

.page-faq .faq-figure {
  margin: 0;
}

/* ---------- 记录迁移 ---------- */
.page-faq .faq-migrate {
  display: grid;
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-migrate__col {
  background: var(--paper);
  padding: clamp(18px, 3vw, 28px);
  border-left: 3px solid var(--blue-500);
}

.page-faq .faq-migrate__col + .faq-migrate__col {
  border-left-color: var(--orange);
  background: #fff;
}

.page-faq .faq-migrate__label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--blue-700);
}

.page-faq .faq-migrate__list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 10px;
}

.page-faq .faq-migrate__list li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .faq-migrate__list a {
  color: var(--orange-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

/* ---------- 线路自检 ---------- */
.page-faq .faq-metrics {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-metrics li {
  background: var(--mist);
  padding: 20px;
  border-top: 3px solid var(--blue-500);
}

.page-faq .faq-metrics li:nth-child(2) {
  background: #fff;
  border-top-color: var(--orange);
}

.page-faq .faq-metrics__name {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--blue-700);
}

.page-faq .faq-metrics__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .faq-timing .title-sm {
  margin: 0 0 12px;
  color: var(--blue-900);
}

.page-faq .faq-timing__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  max-width: 44em;
}

.page-faq .faq-timing__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .faq-timing__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 10px;
  height: 1px;
  background: var(--orange);
}

/* ---------- 现象速查 ---------- */
.page-faq .faq-folds {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-folds details {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-folds summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 12px;
  min-height: 48px;
  box-sizing: border-box;
  cursor: pointer;
  list-style: none;
  border-left: 3px solid transparent;
  transition: background .16s var(--ease), border-color .16s var(--ease);
}

.page-faq .faq-folds summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-folds summary:hover {
  background: var(--paper);
  border-left-color: var(--cyan);
}

.page-faq .faq-folds summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-folds summary .mono {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--orange);
}

.page-faq .faq-fold__q {
  flex: 1 1 auto;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--blue-900);
}

.page-faq .faq-folds summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--orange);
  line-height: 1;
}

.page-faq .faq-folds details[open] summary::after {
  content: "−";
}

.page-faq .faq-fold__body {
  padding: 0 12px 18px 60px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--graphite);
}

.page-faq .faq-fold__body a {
  color: var(--orange-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

/* ---------- 升级版说明 ---------- */
.page-faq .faq-upgrade {
  background: var(--blue-700);
  color: var(--paper);
  border-top: 3px solid var(--cyan);
}

.page-faq .faq-upgrade__figure {
  margin: 0 0 clamp(24px, 3.4vw, 40px);
}

.page-faq .faq-upgrade__head {
  max-width: 44em;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-faq .eyebrow--invert {
  color: var(--cyan);
}

.page-faq .faq-upgrade__head .title-lg {
  margin: 6px 0 12px;
  color: #fff;
}

.page-faq .faq-upgrade__head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(233, 238, 243, .82);
}

.page-faq .faq-upgrade__grid {
  align-items: start;
}

.page-faq .faq-upgrade__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-faq .faq-upgrade__list li {
  padding-left: 18px;
  border-left: 3px solid var(--orange);
}

.page-faq .faq-upgrade__list .title-sm {
  margin: 0 0 6px;
  color: #fff;
}

.page-faq .faq-upgrade__list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(233, 238, 243, .84);
}

.page-faq .faq-upgrade a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-upgrade__aside {
  background: var(--blue-900);
  padding: clamp(20px, 3vw, 28px);
  border-left: 3px solid var(--cyan);
}

.page-faq .faq-upgrade__aside-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-faq .faq-upgrade__aside p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(233, 238, 243, .84);
}

.page-faq .faq-upgrade__aside .btn {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
}

.page-faq .faq-upgrade__aside-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(233, 238, 243, .62);
}

/* ---------- 找人问 ---------- */
.page-faq .faq-ask {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-ask li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 10px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-ask li .mono {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--orange);
}

.page-faq .faq-contactbox {
  background: var(--blue-900);
  color: var(--mist);
  padding: clamp(22px, 3vw, 30px);
  border-top: 3px solid var(--orange);
}

.page-faq .faq-contactbox__title {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .faq-contactbox__row {
  margin: 0 0 12px;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 10px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-contactbox__row span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(233, 238, 243, .62);
  padding-top: 3px;
}

.page-faq .faq-contactbox__row a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(36, 224, 200, .4);
}

.page-faq .faq-contactbox__row a:hover {
  border-bottom-color: var(--cyan);
}

.page-faq .faq-contactbox__meta {
  margin: 16px 0 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line-invert);
  font-size: 14px;
  line-height: 1.8;
  color: rgba(233, 238, 243, .8);
}

.page-faq .faq-contactbox .btn {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-migrate {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-metrics {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 880px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: 7fr 5fr;
  }

  .page-faq .faq-hero__panel {
    margin-right: calc(var(--gutter) * -1);
    padding-right: calc(var(--gutter) + 8px);
    padding-left: clamp(44px, 6vw, 88px);
    clip-path: polygon(16% 0, 100% 0, 100% 100%, 0 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .page-faq .faq-upgrade__figure {
    max-width: 900px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-catalog__grid {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }

  .page-faq .faq-catalog__side {
    position: sticky;
    top: 28px;
  }
}

@media (max-width: 559px) {
  .page-faq .faq-hero__jump .btn {
    width: 100%;
    justify-content: center;
  }

  .page-faq .faq-steps > li {
    padding-left: 48px;
  }

  .page-faq .faq-steps > li::before {
    width: 30px;
  }

  .page-faq .faq-steps > li::after {
    left: 14px;
  }

  .page-faq .faq-fold__body {
    padding-left: 12px;
  }

  .page-faq .faq-ask li {
    grid-template-columns: 28px 1fr;
  }

  .page-faq .faq-contactbox__row {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}
<<<END>>>